How severe is CVE-2023-31926?

CVE-2023-31926 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2023-31926 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31926?

CVE-2023-31926 affects Broadcom Brocade Fabric Operating System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31926?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-31926 published?

CVE-2023-31926 was published on 2023-08-02 and last updated on 2026-06-17.

CVE-2023-31926

CVE-2023-31926 is a high-severity vulnerability in Broadcom Brocade Fabric Operating System with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-281.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-281
Affected product: Broadcom Brocade Fabric Operating System
Published: 2023-08-02
Last modified: 2026-06-17

Description

System files could be overwritten using the less command in Brocade Fabric OS before Brocade Fabric OS v9.1.1c and v9.2.0.

Frequently asked questions

What is CVE-2023-31926?: System files could be overwritten using the less command in Brocade Fabric OS before Brocade Fabric OS v9.1.1c and v9.2.0.
How severe is CVE-2023-31926?: CVE-2023-31926 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2023-31926 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31926?: CVE-2023-31926 affects Broadcom Brocade Fabric Operating System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-31926?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-31926 published?: CVE-2023-31926 was published on 2023-08-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:broadcom:brocade_fabric_operating_system:*:*:*:*:*:*:*:*

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